The group seems to be in the room, working on one of five takes of the now-classic slow blues they would attempt that day.
"We're going to do a slow blues for you now people."
The song, a slow twelve-bar blues, "is one of the most traditional in sound and form of all his official recordings".
Her version is a slow blues in 6/8 time.
He played several bars of slow blues, let his hands fall to his sides.
Singer John Mayer also covers the song as a slow blues in many of his live shows.
Willis employed an array of musical styles from slow blues to uptempo country dance tracks.
It opened with a slow blues, and moved through funk, ballads, soul, rock and rap.
Joe Stump plays some nice slow blues, but only in between some very impressive fast lead guitar.
There was a fourth song recorded, a "slow blues", but to this day it remains unreleased.